Kim Kardashian has just added yet another pricey ride to her fleet of vehicles ... a new $150K Mercedes G-Wagon. Lucky, lucky!

After finishing her workout at Barry's Bootcamp in Sherman Oaks, the 31-year-old reality star was all smiles as she hopped in her shiny black Benz.

A Ferrari, a Rolls Royce, a Range Rover and boyfriend Kanye West's Lambo ... so many choices, what's a girl to do?